<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>CSS入门</title>
    <link rel="stylesheet" href="css/01.css"/>
    <style>
        h1{
            color: red;
            font-size: 100px;
        }


    </style>
</head>
<body>
<h1 style="color: blue;font-size: 50px">今天开始花里胡哨</h1>
<h1>今天开始变好看</h1>
</body>
</html>